• Journal of the Korean Society of Marine Environment & Safety
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• v.9 no.2
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• pp.5-13
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• 2003

Ships of 500 gross tonnage and upwards constructed an or after 1 July 2002 shall have an automatic tracking aids according to SOLAS V/19 but existing ships less than 10,000 gross tonnage constructed before 1 July 2002 have potential collision risks due to the lack of automatic plotting devices like as an ATA. This paper aims to provide a homemade ATA by developing the tracking algorithm for ATA and to prevent collision incidents by distributing ATA system to coasters.

• Journal of Fisheries and Marine Sciences Education
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• v.16 no.1
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• pp.110-123
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• 2004

Five Islands in the West Sea of Korea (Baekryeong-do, Daecheong-do, Socheong-do, Yeonpyeong-do, and Woo-do) are located very close to the North Korea's coast and all of them are under the jurisdiction of South Korea. The North and South Korean naval vessels clashed twice in the West Sea of Korea on June 15, 1999 and on June 29, 2002. These incidents were resulted from conflicts over the validity of the Northern Limit Line(NLL) and the appropriate maritime boundary between the two Koreas. From the viewpoint of South Korea, the North Limit Line is a lawful Maritime Military Demarcation Line under the Korean Military Armistice Agreement and it must be maintained as a maritime boundary between two Koreas until being substituted by a peace treaty. In conclusion, the maritime boundary between two Koreas cannot be settled easily by the principles of the International Law of the Sea at present.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2022.11a
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• pp.57-58
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• 2022

Pilots are always exposed to unpredictable risks of the marine environment because they are boarding the ship through pilot ladders or gangways at sea. Since the pilot plays an important role in securing the safety of ships entering or departing from the port, the injury of the pilot greatly affects the overall safety of the ship. The purpose of this study is to analyze pilot incidents and predict accidents. For this purpose, the pilot injury accident cases are analyzed and potential situations are identified through a survey. And the pilot injury accident was predicted. The results can be used as basic data for prevention of pilot-related accidents.

• Journal of the Korean Society of Marine Environment & Safety
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• v.15 no.1
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• pp.49-55
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• 2009

Typhoons are usually influencing at least 3 or 4 times per year in Korean peninsula and they accompanied with strong winds and heavy rains and then brought tremendous loss of properties and lives. Especially typhoon "MAEMI" resulted in a lot of marine accidents of vessels such as sinking, stranding, collision etc. at anchoring or on berthing in pier. If the typhoon comes up to expected area influencing the incidents, the vessel tries to escape from the route of typhoon or anchor in sheltering anchorage. However, consideration of the anchoring or judgement of ship's safety against strong winds is decided only by the experience of operators without detail evaluation of the safety. Therefore, this paper evaluated the safety of T.S. HANBADA by comparing the external forces with the holding powers. Furthermore, based on this evaluation, the anchoring manual was produced for the maximum endurable wind velocity, the general precautions and the actions taken on the ship with steps.

• Journal of the Korean Society of Marine Environment & Safety
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• v.22 no.5
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• pp.444-453
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• 2016

In this study, I suggested 'Mission command' as the on-scene commander's leadership intended to save people's lives quickly and safely when occured marine accident. First, I considered the concepts and limitations, efforts to introduce and settle the mission command, discussed why the introduction of mission command for Korea Coast Guard, the scope and specific way when applied. Korea Coast Guard must apply the Mission command as the on-scene commander's leadership to achieve efficient rescue work at the scene of an accident, even for incidents that can-not be foreseen. However, mission command cannot be established overnight: long-term, systematic efforts to stably develop mission command at the organizational level are required. We will strive to apply mission command across all aspects of the system, including education, training, personnel, and procedures, equipping each component with the basic requirements for mission command.

• Journal of the Korean Society of Marine Environment & Safety
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• v.25 no.5
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• pp.527-534
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• 2019

Several types of mathematical analysis methods are used for port waterway risk assessment based on marine traffic volume. In Korea, a marine traffic congestion model that standardizes the size of the vessels passing through the port waterway is applied to evaluate the risk of the waterway. For example, when marine traffic congestion is high, risk situations such as collisions are likely to occur. However, a scientific review is required to determine if there is a correlation between high density of maritime traffic and a high risk of waterway incidents. In this study, IWRAP Mk2(IALA official recommendation evaluation model) and a marine traffic congestion model were used to analyze the correlation between port waterway risk and marine traffic congestion in the same area. As a result, the linear function of R2 was calculated as 0.943 and it was determined to be significant. The Pearson correlation coefficient was calculated as 0.971, indicating a strong positive correlation. It was confirmed that the port waterway risk and the marine traffic congestion have a strong correlation due to the influence of the common input variables of each model. It is expected that these results will be used in the development of advanced models for the prediction of port waterway risk assessment.

• Journal of the Korean Society of Marine Environment & Safety
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• v.21 no.6
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• pp.672-678
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• 2015

The types of hazardous and noxious substances (HNS) being transported by sea in Korea are at about 6,000, HNS transport volume accounts for 19% of total tonnage shipped in Korea, and the increase rate of seaborne HNS trade in Korea is 2.5 times higher than the average increase rate of the world seaborne HNS trade. Reflecting this trend, HNS spill incidents have been frequently reported in Korean waters, and there are increasing social demands to develop HNS management technology for the preparedness, response, post-treatment and restoration in relation to HNS spill incidents at sea. In this study, a risk-based HNS prioritization system was developed and an HNS risk database was built with evaluation indices such as sea transport volume, physicochemical properties, toxicities, persistency, and bioaccumulation. Risk scores for human health and marine environments were calculated by multiplying scores for toxicity and exposure. The top-20 substances in the list of HNS were tabulated, and Aniline was ranked first place, but it needs to be managed not by individuals but by HNS groups with similar score levels. Limitations were identified in obtaining data of chronic toxicity and marine ecotoxicity due to lack of testing data. It is necessary to study on marine ecotoxicological test in the near future. Moreover, the priority list of HNS is expected to be utilized in the development of HNS management technology and the relevant technologies, after the expert's review process and making up for the lack of test data in the current research results.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2016.05a
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• pp.4-6
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• 2016

준해양사고 통보제도(Marine Incidents Reporting System)는 우리나라의 선박소유자 및 선박운항자가 선박의 구조 설비 또는 운용과 관련하여 시정 또는 개선되지 않으면 선박과 사람의 안전 및 해양환경 등에 위해를 끼치거나 위해를 끼칠 수 있는 사태로서 해양사고를 제외한 사건이나 사고에 대하여 자율적으로 중앙해양안전심판원에 통보하도록 하여 심판원은 이를 분석하여 교훈을 발굴하고 정기적으로 업계에 전파하여 해양사고 예방에 도움이 되고자 하는 제도이다. 동 제도는 2010월 4월 조기 시행 한 후 시행 5년차에 접어들었지만 홍보부족, 선박의 특수성, 제도적 장치의 부족으로 통보제도 운영에 어려움을 격고 있다. 본 논문에서는 IMO 해양사고조사코드와 국내외 유사 준사고 보고제도 분석 후 통보대상자를 대상으로 준 해양사고 통보제도의 현황에 대한 설문을 실시하고 분석함으로써 동 제도의 활성화 방안을 제시하고자 한다.

• Ocean Systems Engineering
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• v.6 no.3
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• pp.233-244
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• 2016

Tension Leg Platform (TLP) is a floating structure that consists of four columns with large diameter. The diffraction theory is used to calculate the wave force of floating structures with large dimensions (TLP). In this study, the diffraction and Froude-Krylov wave forces of TLP for surge, sway and heave motions and wave force moment for roll, pitch degrees of freedom in different wave periods and three wave approach angles have been investigated. From the numerical results, it can be concluded that the wave force for different wave approach angle is different. There are some humps and hollows in the curve of wave forces and moment in different wave periods (different wavelengths). When wave incidents with angle 0 degree, the moment of diffraction force for pitch in high wave periods (low frequencies) is dominant. The diffraction force for heave in low wave periods (high wave frequencies) is dominant. The phase difference between Froude-Krylov and diffraction forces is important to obtain total wave force.

• The Journal of Fisheries Business Administration
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• v.25 no.2
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• pp.59-87
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• 1994

While overall input of oil into the sea has actually declined over the years 1975-92, major spills have regularly occurred in certain locations which have had serious effects upon local environments and hence caused public outcry. The purpose of this paper is to suggest the scheme for maximizing the compensation for oil pollution, which can be adopted in Korea, by analysing the mandatory 1969 Civil Liability Convention(CLC), the 1971 Fund Convention and two voluntary schemes (TOVALOP andCRISTAL). The paper examines the major subjects which are as follows : major pollution incidents and international response, the present situation of oil pollution in Korea, the role of flag of convenience tankers in oil pollution, the mode of oil pollution damages and tanker owner's liability, international compensation system fer oil pollution, Korean compensation system for oil pollution damage, and its problems to be tackled.